You probably will have to remove the joint to fix it, but you may be able to get to it by pulling the shaft from above, which is much easier. I did this on my W116 , and the R107 may have the same wheel arrangement. IIRC you pull the wheel off and under it are 3 10mm bolts and the column comes up. Look around here - someone described it in detail a few years ago on a W116 and it saved me a lot on agony.

Rick

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